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• Can I legally use SWT for stand-alone apps?

Post from "lize" describing a very straightforward way to configure SWT for your apps

Post from Peter Manahan explaining how SWT can be accessed in a non-Eclipse batch script

runnit.bat on Windows

runnit.sh on Linux

Run a standalone SWT app from Eclipse

Right-click on project name in Navigator or Packages view and select Properties... Select Java Build Path / Libraries. Click Add External Libraries and add ECLIPSE_HOMEpluginsorg.eclipse.swt.win32_2.0.0wswin32swt.jar.

It also helps to attach Java source to SWT library.
Right-click on SWT library in Packages view and select "Properties".
Then select "Java Source Attachment" end enter source file name:
ECLIPSE_HOMEpluginsorg.eclipse.platform.win32.source_2.0.0srcorg.eclipse.swt.win32_2.0.0wswin32swtsrc.zip

This will give pop-up help and ability to examine source with F3 key, as described in Hacking on Eclipse Itself

import org.eclipse.swt.SWT;
 import org.eclipse.swt.layout.GridLayout;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Shell;
 
 public class Standalone {
 
   public static void main(String[] args) {
     Display display = new Display();
     Shell shell = new Shell(display);
     shell.setBounds(100,100,150,50);
     shell.setText("Hi");
     shell.setLayout(new GridLayout());
     Label label = new Label(shell, SWT.CENTER);
     label.setText("Hello, world!");
     shell.open();
     while (!shell.isDisposed()) {
       if (!display.readAndDispatch())
         display.sleep();
     }
     display.dispose();
   }
 }
 

create a stand-alone swt application

create a stand-alone jface application

(Mise à jour le 25/03/2002)
Auteur : Xavier MEHAUT

Steps :

• Create a java project
• modify project properties
• cerate a class
• redefine methods
• run application

Modify project properties

Create a class

Pour créer une application, il est nécessaire de faire une sous-classe de la classe ApplicationWindow de la manière suivante :

import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Shell;

public class TestJFace extends ApplicationWindow {
public TestJFace(Shell parentShell) {
super (parentShell);
}
public static void main(String[] args) {
Display display = new Display();
Shell aShell = new Shell(display);
TestJFace application = new TestJFace(aShell);
application.open();
}
}

Redefined methods

To widen the functionnality numbers we must redefine the methods already defined in ApplicationWindow or in its super-classes Window.

• protected Control createContents(Composite parent) : called when creating misc. window components like status bar, tool bar, menu bar, composites, ...
• protected void handleShellCloseEvent() : action when closing the window
• protected Point getInitialSize() : initialize the size of the window
• protected Point getInitialLocation() : initialize the window location
• protected void configureShell(Shell shell): to initialize the application
• protected void createMenuManager() : to redefine the menu
• protected void createToolManager(int i) : to define the toolbar
• protected void createStatusLineManager() : to define the status bar

JFace example

package example;

import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.GroupMarker;
import org.eclipse.jface.action.MenuManager;
import org.eclipse.jface.action.ToolBarManager;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.window.ApplicationWindow;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Group;
import org.eclipse.swt.widgets.MenuItem;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;

public class TestJFace extends ApplicationWindow {

public TestJFace(Shell parentShell) {
super (parentShell);
}

public static void main(String[] args) {
Display display = new Display();
Shell aShell = new Shell(display);
TestJFace application = new TestJFace(aShell);
application.createComponents();
application.open();
application.setStatus( "sdqds" );
}

public void createComponents() {
addMenuBar();
addStatusLine();
addToolBar(SWT.FLAT | SWT.WRAP);
setBlockOnOpen( true );
};

protected MenuManager createMenuManager() {
MenuManager menuManager = new MenuManager();
menuManager.add(createHelpMenu());
return menuManager;
}

private MenuManager createHelpMenu() {
MenuManager menu = new MenuManager( "Help" , "Id01" );
menu.add( new GroupMarker( "About" ));
menu.add(createAboutAction());
return menu;
}

private Action createAboutAction() {
return new Action() {
public String getText() {
return "Essai" ;
}

public void run() {
String[] tab = { IDialogConstants.OK_LABEL };
MessageDialog dialog =
new MessageDialog(
getShell(),
"Essai JFace" ,
null ,
"Ceci est une fenêtre d''information" ,
MessageDialog.INFORMATION,
tab,
0);
dialog.open();
}
};
}

protected void configureShell(Shell shell) {
super .configureShell(shell);
shell.setText( "Essai JFace" );
}

protected Point getInitialSize() {
return new Point(600, 400);
}

protected Point getInitialLocation() {
return new Point(600, 400);
}

protected void handleShellCloseEvent() {
String[] tab = { IDialogConstants.OK_LABEL };
MessageDialog dialog =
new MessageDialog(
getShell(),
"Fin de l'essai" ,
null ,
"Nous allons quitter l'application" ,
MessageDialog.INFORMATION,
tab,
0);
dialog.open();
setReturnCode(CANCEL);
close();
}

protected ToolBarManager createToolBarManager( int style) {
return new ToolBarManager(style);
}

protected Control createContents(Composite parent) {
Table aComposite = new Table(parent, SWT.BORDER);
return aComposite;
}

}

Comments:

From jtf - 8/23/05 4:43 PM

From SilvioMoioli - 8/20/05 4:01 AM